1908,] FROM THE TSU-SHIMA ISLANDS. 53 



7. LUTREOLA SIBIRICA Pall. 



6 . 1262, 1269, 1276. Sasuna, JN". Island. 



These specimens agree absolutely in size, colour, and length of 

 tail' with Vladivostok and other mainland examples of the group, 

 and equally differ from the Japanese Putorius itatsi. 



On the other hand, the Quelpart Minks, which I had supposed 

 to be summer representatives of sihiricus, prove on a closer ex- 

 amination to be more allied to itatsi, though separable from it*. 

 In both islands, therefoi-e, the members of the present genus 

 exactly contradict the conclusions as to the faunistic relations of 

 Quelpart and Tsu-shima with Korea and Japan, indicated by 

 Urotrichics and the Mice. 



" The most common of the Carnivora of the Islands ; not living 

 near houses, but in the wooded hills. Sometimes eaten by the 

 fishermen. Called ' Yoto-shi ' = Night-thief ."—J/. P. A . 



8. Mus xoRVEGicus Erxl. 



(S. 1267. $. 1268. Sasuna, N. Island. 



" Common on the sea-shore, where I found it living among the 

 rocks. Fishermen told me that it swims in the sea."— J/. P. A. 



9. Apodemus speciosus Temm. 



c?. 1252, 1270. $. 1250, 1251, 1253, 1264, 1271, 1280. 

 Sasuna, N. Island. 100'. 



J . 1202, 1207, 1210, 1227, 1236, 1241. $ . 1201, 1208, 1220 

 1239. Izuhara, S. Island. 300'. 



These specimens are absolutely s])eciosii,s and not j^^ninsulce, 

 thus agreeing with the other Rodents in their Japanese rather 

 than Korean relationship. 



* LUTBEOIA QUELPAETIS, sp. 11. 



Size as in P. itatsi, the Japanese Mink, markedly smaller than in the Korean 

 P. sihiricus. General colour, in summer pelage, dark tawny or russet-brown, quite 

 as in P. itatsi. Face dark " seal-brown " ; under surface, tail, and sides of neck 

 russet ; lips and cliin white ; hands and feet russet, passing terminally into drab. 



Skull with a very high and vaulted brain-case, much more so than that of either 

 P. sibirictis or itatsi. XJpijer molar with its inner lobe narrow, the aiitero-posterior 

 diameter of this lobe little or not more than that of the outer lobe, and therefore 

 much reduced as compared with either of the allied forms, iu which there is a 

 broadly expanded inner lobe. 



Dimensions of a pair, measured in flesh : — 



(J (Type). Head and body 309 mm. ; tail 153 ; hind foot 55 ; ear 25. 

 ?. „ 265 „ ; „ 130; „ 46; „ 22. 



S (type). ?. 



Skull — condylo-basal length 57'5 50'5 



basal length 54 47'3 



mastoid breadth 25"7 22"o 



combined height of braiu-case and bullffi 21*5 17'8 



inner lobe of m^, antero-posterior diameter] ... 2'2 2 

 Mab. Island of Quelpart, S. of Korea. 



Ti/j)e. Adult male. B.M. No. 6.12.6.1. Original number 627. Collected 7th 



September, 1905, by M. P. Anderson ; presented by the Duke of Bedford, K.G. 

 (Four specimens exam.ined.) 



